(19)
(11) EP 3 748 244 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.03.2021 Bulletin 2021/13

(43) Date of publication A2:
09.12.2020 Bulletin 2020/50

(21) Application number: 20173895.2

(22) Date of filing: 11.05.2020
(51) International Patent Classification (IPC): 
F24F 11/36(2018.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 04.06.2019 JP 2019104100

(71) Applicant: Hitachi-Johnson Controls Air Conditioning, Inc.
Tokyo 105-0022 (JP)

(72) Inventors:
  • IDA, Aya
    Minato-ku, Tokyo 105-0022 (JP)
  • KAWASHIMA, Yoshinori
    Minato-ku, Tokyo 105-0022 (JP)

(74) Representative: MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB 
Paul-Heyse-Strasse 29
80336 München
80336 München (DE)

   


(54) AIR-CONDITIONER


(57) An air-conditioner including: a switching section configured to switch a setting by manual operation; and a control section configured to report an abnormality by a reporting means in a case where a refrigerant detection sensor is not electrically connected to the control section in a state in which the setting of the switching section has been switched to a setting that the refrigerant detection sensor is installed.







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